H.A.M.M.E.R. is a fictional espionage and law enforcement agency appearing in American comic books published by Marvel Comics and was formed in "Secret Invasion" #8 to replace S.H.I.E.L.D., created by what two men? 
Stan Lee and Jack Kirby
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H.A.M.M.E.R.
8517939
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H.A.M.M.E.R.
8517939
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S.H.I.E.L.D.
26281765
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S.H.I.E.L.D.
26281765